Question

Si a # b = 7a - 13b;
Calcula: (4 # 2) # (2 # 1)

Answer 1

• 4#2= 7(4) - 13(2)

=28 -26

=2

• 2#1= 7(2) -13(1)

=14 - 13

=1

Calcula:(4#2) # (2#1)

2 # 1 = 7(2) - 13(1) :

= 14 - 13

= 1

Respuesta: 1